Single-point tool geometry: rake angle for machining brass with HSS For free-cutting brass and similar brasses using HSS tools, select the recommended rake angle setting. Choose the best value.

ApproachBrass is short-chipping and not very strain-hardening; a small or zero rake avoids tool digging-in and helps maintain edge strength and correct geometry.

NotesPositive rake values (10–20°) are more common for steels and ductile materials to reduce cutting forces; brass typically uses 0° (or a small negative) rake.

Final Answer0° rake.